﻿Controls:
    Note editor:
        delete   -> delete selected notes
        tab      -> edit next note [TODO]

        ctrl + e -> toggle edit mode on/off
        ctrl + g -> toggle grid snap for adding/moving notes
        ctrl + z -> undo previous action
        ctrl + y -> redo previously undid action
        
        shift + mouse wheel -> horizontal scroll
        ctrl  + mouse wheel -> zoom in/out
        
        hold right mouse button            -> scroll editor with mouse (in non-edit mode)
        doubleclick with left mouse button -> edit note phoneme/lyrics (in edit mode)
        
        ctrl + s         -> save
        ctrl + shift + s -> save as

    Voice dynamics buttons: FIXME [TODO]
        left mouse button click  -> select active (foreground) graph to display
        right mouse button click -> select (or disable) passive (background) graph to display
